163622645 has 8 divisors (see below), whose sum is σ = 196915104. Its totient is φ = 130519504.

The previous prime is 163622639. The next prime is 163622663. The reversal of 163622645 is 546226361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163622645 - 2¹² = 163618549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45419 + ... + 48888.

It is an arithmetic number, because the mean of its divisors is an integer number (24614388).

Almost surely, 2^163622645 is an apocalyptic number.

It is an amenable number.

163622645 is a deficient number, since it is larger than the sum of its proper divisors (33292459).

163622645 is an equidigital number, since it uses as much as digits as its factorization.

163622645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94659.

The product of its digits is 51840, while the sum is 35.

The square root of 163622645 is about 12791.5067525292. The cubic root of 163622645 is about 546.9502220120.

The spelling of 163622645 in words is "one hundred sixty-three million, six hundred twenty-two thousand, six hundred forty-five".